The New York Times previews the new online digital gallery of the New York Public Library, which includes over 275,000 images of manuscripts, dust jackets, menus and sheet-music covers, among other oddities. Beware, though, browsing through the images can be addictive: "If you dive in today without knowing why, you might not surface for a long, long time. The Public Library's digital gallery is lovely, dark and deep. Quite eccentric, too." There's 340 images from the NYPL science collection, for example, which chronicles more than 700 years (!) of science breakthroughs in fields like astronomy, chemistry, geology, mathematics, medicine, and physics.